html - php: how to split up a really long string -

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this question has answer here:

i new php , have question.

i've made chat-like application, working can't seem find want in searching previous threads.

the user can input form field $message. so...

$message = $_post['message'];

the input box allows maximum of 600 characters. if user posts nothing 1 long entire string doesn't contain white space, or spaces between of string characters.. short example..

ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

if goes length, causes page break creating horizontal scroll frame.

how can take $message , filter break up? taking account users posting real $message, , not accidentally split valid words etc. maybe checks see if 1 of $message array elements longer xxx amount of characters long , if break up? or what's easiest way go this?

you should put content of $message inside element class set break long lines (word-wrap: break-word):

i.e:

.php

<?php  if(isset($message = _$post['message'])){ $message = _$post['message'];  echo "<div class='message'>$message</div>  }

.css

.message {   word-wrap: break-word; /* careful this, breaks normal words */   word-break: break-all;  -webkit-hyphens: auto;    -moz-hyphens: auto;         hyphens: auto; }

the above works in internet explorer 8+, firefox 6+, ios 4.2, safari 5.1+ , chrome 13+.

codepen demo


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